{
  "id": "cve-2026-102490",
  "cveID": "CVE-2026-102490",
  "vendor": "Zammad GmbH",
  "product": "Zammad",
  "vulnerabilityName": "Zammad GmbH Zammad Improper Privilege Management Vulnerability",
  "shortDescription": "Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root. This vulnerability can be chained with CVE-2026-102489.",
  "requiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "dateAdded": "2026-10-02",
  "dueDate": "2026-10-05",
  "knownRansomware": false,
  "cwes": [
    "CWE-269"
  ],
  "notes": "https://zammad.com/en/product/releases/ ; https://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-102490",
  "sources": [
    {
      "label": "NVD",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102490"
    },
    {
      "label": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    },
    {
      "label": "zammad.com",
      "url": "https://zammad.com/en/product/releases/"
    },
    {
      "label": "community.zammad.org",
      "url": "https://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2"
    },
    {
      "label": "cisa.gov",
      "url": "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk"
    },
    {
      "label": "cisa.gov",
      "url": "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk"
    },
    {
      "label": "nvd.nist.gov",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102490"
    }
  ],
  "cvss": {
    "score": 9.4,
    "severity": "CRITICAL",
    "version": "4.0",
    "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:C/RE:X/U:X"
  },
  "epss": {
    "score": 0.00629,
    "percentile": 0.48437
  },
  "timeline": [
    {
      "date": "2026-10-02",
      "event": "Added to the CISA KEV catalog"
    },
    {
      "date": "2026-10-05",
      "event": "CISA remediation due date (BOD 22-01)"
    }
  ],
  "status": "past due"
}